Effects of Teachers’ Written Corrective Feedback on the Writing Achievement of First-Year Ethiopian University Students

Table 3

Tests of between-subjects effects.

Dependent variable: immediate posttest 1 writing achievement score
Source	Type III sum of squares	df	Mean square	F	Sig.	Partial η^2
Corrected model	2280.487^a	3	760.162	91.910	0.000	0.690
Intercept	523.757	1	523.757	63.327	0.000	0.338
Pretest score	1814.225	1	1814.225	219.355	0.000	0.639
Conditions	317.434	2	158.717	19.190	0.000	0.236
Error	1025.568	124	8.271
Total	24653.000	128
Corrected total	3306.055	127

^aR² = 0.690 (adjusted R² = 0.682).